Winding machine



. lgmw Eve Y March 2 0 1945. E. H. COBB WINDING MACHINE Filed Dec. 12, 1942 cess may be avoided.

' bobbin.

pensively and will in ashort time'pay for particularly pointed out in the appended Patented Mar. 20, 1945 WINDING MACHINE. Everett H. Cobb. lawtucket, R. I., assignor of v, one-lialf'toltoscoe N. Stokes, Barrington, It l.

Application December 12, 1942, Serial No. 468,747

,8 Claims. (cram-43.7) 4

This invention relates to a winding machine and more particularly to a filling winder.

0neof the objects of this invention provides mechanical means for controlling the amount of yarn that will be utilized for the bunchfthat isplaced upon each of the bobbinssothat ex- Another object of the invention is to lay the yarn bunch on the bobbin with a traverse motion that it may be distributed evenly along the package forming a fiat tight winding on the Another objectof this invention is to provide mechanical means for building a. bunch which will'become automatically disconnected from control of the yarn to permit the main traverse-motion of the machine to control the yarnafter the bunch has been formed;

Another object of thisinvention is-to provide simple addition to a machine now already in ex- 'istence by which this automatic bunch building mechanism may be attached to existingmachines.

Another object of this invention is to provide a simple control which may be produced inexin a saving of time of the operator.

itself With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described and claims. In the accompanying drawing:'. j r Fig. 1 is an end elevation illustrating a winding machin'e equipped with my invention; 7

Fig. 2 is a fragmental view looking at'the machine from rightangles'to that shownin Fig. 1

illustrating the ratchet feedof thescrew' 'shaft of the building mechanism; p p Fig. 3 is a, fragmental view at substantially line 33 of Fig. 1;

' Fig. 4 is a view on'substantially line 4-'4 of Fig.

3; and I l r Fig. 5 is a section substantially on the line ii- 5 0f Fig. 3 showing the carrier for the follower roll.

'In proceeding with this invention I provide an attachment for a winding machine'which will obtain control of motion transmitted tothe rocking "member through which'the traversing of the yarn is controlled and then disconnect this mechanism to perr'nit the usual main traverse to continue with its operation after a predetermined length of time for the building of a bunch. An arrangement for adjustment of the length of time-which the auxiliary mechanism exertsits control is pro- .vided. and I utilize the mechanism which prewv 'viously advanced the traverse step by Step a1ong' 5' is imparted to shaft 33 in a the bobbin for feeding theauxiliary mechanism to move it out of controlof-"the "y'arnat the desired time.

1 With reference to the drawing! desig-nates the frame at the end of the machine where the builder'Inotionis-looated. fYarn designatedl l; is

leadfrom a suitable supply to the bobbin new is so vertically traversed as to-cause'fa package which has a taper at either endyas indicated in dottedline at 13, to be built. There are afplur; ality of yarn ends typifiedby the single'end' l 'l shown and each of these lead to' a separate bobbin. Each yarn end extends beneath along bar l4 and over ausimilar bar 15 which bars are carriedby swinging arms 16 which'rock up and I down to traverse the yai' n' alongt'heibobbin.

Arms 16 are mounted ona'shaft ITwhich rocks in bearings provided by brackets 18 supported from the frame work of the machineasat l9 and 20. A lever 2| extends 'outwardly'from the shaft I! and is keyed thereto 1 and this lever is connected to a rod 22 upon which a downward pull is exerted by the builder mechanism while a spring 23 acting upona segmentalarmi l tends toswing the lever 2|, arm-l6; and'traversin'g bars upwardly. The bell crank'lever 25 pivoted on the frame of the machine as at 26" provides one armi'! to which the link rod 22 is secured 'a's at 28-infthe slot 29. The'pull of the spring 23 tends to swing the armf 3ll 'ofthe bell crank lever 25 toward the right as shownfin' Fig.1 so that its enlarged face 3| will be normfallyin engagement with the threaded end'32 Ofth rod'33.

Swinging arm 34 is pivoted at35 on the frame IU of the machine and carries a nut 36 pivotally mounted as at 31 at the upper. end of thislarm which nut has threaded engagement with the threaded portion of the rod 33. Theother end of this rod extends loosely through a bearing 38 positioned at the upper right side of the frame I!) and rockably carries bracket 39 (see'ylfigQfZ)v which I has a pawl 40 pivotallymounted thereon. This pawl 40 engages a ratchet 4 l slida-bly mounted on shaft33 .and keyedthereto torotate therewith.

:" Thus,as the arm 34rock's,the'shaft'33f carried thereby will slide through the ratchet M." The bracket 39 is engagedby a" camj ld mounted on shaft and driven by gear 46 which in 'turn' is driven by the train of gears, ,48and beltdriven wheel. 49. Thus an intermittent rotary motion usual andwell known manner.

' Aheart shape cam 50) is also upon shaft 45 which is engaged byjcain follower '5! carried by arm 52 pivoted as at 53' to theifr'amefrom (see Fig. 3) theteeth 51 of which engage a pinion 58 mounted upon shaft 33 so as to rotate and move axially therewith. As the shaft 33"is rotated, by the pawl and ratchet arrangement above described, it willbe moved axially in the nut 35 and move the pinion 58 therewith and out of engagement with the rack teeth 57.- The tilrring however being such that the carriage 55gwill have been moved to its lowermost position prior to the complete disengagement of pinion 58 andrack. teeth 51. The mechanism so far described forms part of the builder motion of the Johnson and'Bassett Inc. winders. F

My attachment consists of an armffill slotted as at '61 and attached to themember by means i of abolt 52 extending through the slotand into the armso of the rockable member. Thisbar 60 is supported in a frame 63 which isadjustably attaehed byfbolt 64 to a bracket 65 which I drop from'the carriage 55 attaching the same thereto as "at 6 6. This bracketis slotted as at 61" so as "to provide for adjustment of the frameor box-like structure 63 which supports the bar 50 but permits the same to slide therethrough freely.

An additional cam 61 is providedon theshaft 45 held in place by a nut and which will bellocated'in the'sanfe plane as the bar Bi). A connecting link consisting of an arm 68 which is pivoted as at 63 to the 'fra'meislocated between and i n'the same plane as: the cam 6 1 and the bar t'fl'and'is engaged by both the cam and the end of the bar "so as to transmit motion from the 'ca'm to the bar. When the cam '61, arm 58, and ba'r GO are in engagement the distance between the center of theshaft '45 and the rock member 25 'will be such that the broad race 3| of the arm fwi1'l be out of engagement with the end 32 of the rod 33 and the oscillationof thej'ar'm, 34wi1l havefno effect on crank lever '25. The crank lever '25ih this situation'will be oscillated by the mo-,

ti'on derived from cam '61 through the connectionfi'fland '58 as previously described. In turn form a winding orbunch of yarn thereon of a' length and distribution governed by the predeter- 'mined throw'and shape of the cam 61 anddistance of movement imparted 'to the bar'fifl along the arm 68. 5 I

of contact of the bar 60 therewith. This will increase the arc of rocking of lever 25 and in turn increase the length of traverse of the bars l4l 5 during the forming of the bunch However, the arm 68 is of a predetermined length so that when the point 70 of the link 60 which engages the connection 68 moves below the end H of this connecting arm then as the link 65 is free to slide and will extend beneath the end H of the arm 68 and become disengaged with the arm 68 and the rock member 25 will under the influence of spring 23 moveinto engagement with the end '32 and be now rocked by the rod 33 and continue with the main traverse of the building motion governed by cam for the formation of the package' There will be an increasing arc of oscillationbf-the'arm 34 because of the increasing arm 34 and cranklever 25 decreases as the shaft 33 is moved axially in the 11111136. At the start of each set of packages it will be necessary to raise the carriage to a predetermined; height to start the operation of the bunch building machine and to axially extend the end of the shaft beyond the arm 34 to the initial setting of the builder mechanism i I tPrior to setting the machine in motion. to package a new doff of bobbins the rod 33 is rotated by means of a handle (not shown) to advance the rod through the nut 36 towards the left side of the machine as Viewed in Fig. l.

The rotation of the rod 33 in adirection to preset the same will also rotate the pinion splined thereto in a direction to raise the carriage 55 and set the same at its upper initial position. In this upper position of the carriage, the bar carried thereby, will have been positioned to have the end thereof engage with the depending arm 68. In this situation the arm 30 of the crank lever 25 will be held out of contact with the end 32 v I of the rod 33. This condition will be maintained In the present instance duringthis initial rocking of the crank lever'25 the arm 34 will be oscillating from'the mo'ti'on de'rived'from the cam 50 in timed relation and in the same direction as crank lever' 25 so as to maintain the separation of.

between thefu'lcrum 'of the arm 68 and point so long as the bar 50 is held in contactwith the arm 68. The spring 23 through ,proper connecting elements will exert sufficient force to cause the end of the bar to move into engagement with the arm H and follow the swinging motion 7 thereof.

Now with the yarn in..proper position on the guides and with'the freeend of the yarn wrapped a few turns about the butt end of the bobbin, the

machine may be set into motion. I I v The rotation of the cam 61 will impart aswinging'motion to the arm 68 which in turn will be imparted to the crank -25 through the bar 60. This action will provide a short or bunch building traverse to the yarn guides.

During the rotation'o'f the cam '61 a similar rotation of the cam 44 takes place which at every turn actuates the pawl arm 39 to advance the ratchet '41 a predetermined portion of a revolution. This action rotates the rod 33a similar portion of 'a revolution in the nut 38, which shortensthe distance the rodextends 'to the left of the'nut '36. The action also provides for a partialyrotation o'f'the pinion 58 in a direction to loWer'the carriage I65 and the bar '61] carried ing arm 68. ,It may be here pointed out-that since the distance between the pivotal connection .of

the arm 58 and the point of engagementwith the yarn guides.

The disengaging of the bar ib with the arm .68 will permit through the pull Qfthespring 23, the engagement of the builder screw 33 with the shoe .31 .on the arm 30. Now the further traverse of the yarn guides will be through;the action of Y the main cam 50, arm 52, arm.34,rod 33, and

crank 25. It is her-e noted that the threaded rod 33 is carried by the arm 34 to and fro in a slight arc since the nut is carried by the arm 34.

line of path of the rod 33 is permitted because of a loose fit of the rod in the bearings and pivoting the nut 31 to the, arm 34. I

The mechanism which I have provided is simple and utilizes controls already on the machine. The attachment may be made quickly and inexpensively to machines already in existence and the operator is thus free during the time usually spent at the start of each operation for other work while the other advantages in saving of yarn and less experience for operation will be readily apparent.

I claim:

1. In a filling winder, a thread guide, a rockable member through which traversing of the thread guide is controlled, mechanism engageable by said rockable member to rock the same, auxiliary mechanism including a bar engaging said rockable member and operatively connected to the first said mechanism, a cam and an intermediate part engaged by the bar and cam to transmit motion from the cam to the said rockable member and to hold the rockable member out of contact with the said first mechanism, and means in said first mechanism also serving to control the engagement of said bar and intermediate part for a predetermined period followed by release of control of the auxiliary mechanism to the control by the said first mechanism.

2. In a filling winder, a thread guide, a rockable member through which traversing of the thread guide is controlled, mechanism engage- .able by said rockable member to rock the same, auxiliary mechanism including a bar operably connected to the first said mechanism, means i for adjustably connecting said bar to said rockable member, a cam, an intermediate part engaged by said cam and said bar to transmit motion from the cam to said rockable member and hold said rockable member out of contact with the first said mechanism, said first mechanism also serving to control the engagement of said bar and intermediate part for a predetermined period followed by release of control of the auxiliary mechanism to the control by the first said mechanism.

3. In a filling winder a thread guide, a rockable member through which traversing of the thread guide is controlled, mechanism engageable by said rockable member to rock the same, including means normally operable to increase the arc of rocking motion of said rockable member as winding proceeds, auxiliary mechanism including a bar engaging said rockable member,

a cam, an intermediate part engaged by said bar and said cam to transmit motion from the cam to the bar to rock said rockable member and hold the same out of contact with the first said mechanism, said bar being supported into engagement with saidintermediate member by the said means-operable to increase the arc of rock- .ing ofsaid-intermediate part and to mo'veit' out of engagement with .said intermediate part after a'predetermined operation of said means operable to increase the arcof rocking motion of said rockable member; Y

4. In a, filling winder, a thread guide, a rockable member through which traversing of the thread" guide is controlled, mechanism engagef-able with said member to rock the same includin'g meansnormallyioperable to increase the: arc

- of; rocking motiomofsaid rockable member as winding proceeds, uauxiliary mechanism including a bar engaging said rockable member, a cam, an intermediate part engaged by said bar and said cam to transmit motion from the cam to said advancing means, said adjustment serving to vary the predetermined timed relation of the auxiliary operation.

5. In a winder, a thread guide, a rockable member through which motion is transmitted to said thread guide, a mechanism for rocking said member including an arm mounted for oscillatory movement, means carried thereby engageable by said rockable member, a carriage movable on said arm, a bar secured to said rockable member and to said carriage, said bar being movable with said carriage and relative thereto, a cam, an intermediate part engaged by said cam and said bar to hold said rockable member out of contact with the said means carried by the said arm so as to transmit motion from said cam through said bar to initially rock said rockable member, at the beginning of the winding, and

means for moving said carriage during said ini-- tial rocking of said member to disengage said bar from said intermediate member after a predetermined period of initial rocking of said rockable member to permit engagement of the said means carried by the said arm with the rockable member.

6. Ina traverse mechanism, a rockable member, an arm mounted for oscillatory movement,

means carried thereby engageable by said rockmeans for moving said carriage for disengaging said intermediate part and said bar after a predetermined period of rocking of said member through said bar.

'7. In a filling winder, a thread guide movable in a generally vertical directioma rockable mem- I ber through which motion is transmitted to said I thread'guide, mechanism engageable with said rockable member normally operable to rock the same, auxiliary mechanism including a'bar engaging said rockable member and operatively connected to the first said mechanism, a cam, an intermediate part engaged by said bar and cam to hold said rockable member out of contact with the said first mechanism to transmit motion from said cam to said bar to initially .locka'saifl Frock- :able member for ra'predetermined i-periorl :at the beginning of the winding,r'means indhzrditngfihe .said first mechanism for disengaging said tauxiliary mechanism from said :memben ian'd means for causing engagement of said 'roclsa'ble member and first said mechanism.

8. In a filling winder, a-thread :gnide movable in a generally vertical direction; a rockable member through which motionliswtransmitted to said thread guide, mechanism engageable' with said rockable member to rock the same, resilient meanstendingto move said member into engagement with said mechanism, auxiliary mechanism first mechanism.

"her out of contact with the first saidmechanism and transmit motion from said cam to said rockable member to initially rock the same for azpredetermined period at the beginning of the winding and means including the said first mechanism 0 :for disengaging said bar and said intermediate part to permit said resilient means to move said ro'ckable member into engagement with the said EVERETT I-I. coma. 

